// SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
package parser2v1

import (
	"testing"

	"github.com/spdx/tools-golang/spdx"
)

// ===== Relationship section tests =====
func TestParser2_1FailsIfRelationshipNotSet(t *testing.T) {
	parser := tvParser2_1{
		doc: &spdx.Document2_1{},
		st:  psCreationInfo2_1,
	}
	err := parser.parsePairForRelationship2_1("Relationship", "something DESCRIBES something-else")
	if err == nil {
		t.Errorf("expected error when calling parsePairFromRelationship2_1 without setting rln pointer")
	}
}

func TestParser2_1FailsIfRelationshipCommentWithoutRelationship(t *testing.T) {
	parser := tvParser2_1{
		doc: &spdx.Document2_1{},
		st:  psCreationInfo2_1,
	}
	err := parser.parsePair2_1("RelationshipComment", "comment whatever")
	if err == nil {
		t.Errorf("expected error when calling parsePair2_1 for RelationshipComment without Relationship first")
	}
}

func TestParser2_1CanParseRelationshipTags(t *testing.T) {
	parser := tvParser2_1{
		doc: &spdx.Document2_1{},
		st:  psCreationInfo2_1,
	}

	// Relationship
	err := parser.parsePair2_1("Relationship", "something DESCRIBES something-else")
	if err != nil {
		t.Errorf("expected nil error, got %v", err)
	}
	if parser.rln.RefA != "something" {
		t.Errorf("got %v for first part of Relationship, expected something", parser.rln.RefA)
	}
	if parser.rln.RefB != "something-else" {
		t.Errorf("got %v for second part of Relationship, expected something-else", parser.rln.RefB)
	}
	if parser.rln.Relationship != "DESCRIBES" {
		t.Errorf("got %v for Relationship type, expected DESCRIBES", parser.rln.Relationship)
	}

	// Relationship Comment
	cmt := "this is a comment"
	err = parser.parsePair2_1("RelationshipComment", cmt)
	if err != nil {
		t.Errorf("expected nil error, got %v", err)
	}
	if parser.rln.RelationshipComment != cmt {
		t.Errorf("got %v for RelationshipComment, expected %v", parser.rln.RelationshipComment, cmt)
	}
}

func TestParser2_1InvalidRelationshipTagsNoValueFail(t *testing.T) {
	parser := tvParser2_1{
		doc: &spdx.Document2_1{},
		st:  psCreationInfo2_1,
	}

	// no items
	parser.rln = nil
	err := parser.parsePair2_1("Relationship", "")
	if err == nil {
		t.Errorf("expected error for empty items in relationship, got nil")
	}
}

func TestParser2_1InvalidRelationshipTagsOneValueFail(t *testing.T) {
	parser := tvParser2_1{
		doc: &spdx.Document2_1{},
		st:  psCreationInfo2_1,
	}

	// one item
	parser.rln = nil
	err := parser.parsePair2_1("Relationship", "DESCRIBES")
	if err == nil {
		t.Errorf("expected error for only one item in relationship, got nil")
	}
}

func TestParser2_1InvalidRelationshipTagsTwoValuesFail(t *testing.T) {
	parser := tvParser2_1{
		doc: &spdx.Document2_1{},
		st:  psCreationInfo2_1,
	}

	// two items
	parser.rln = nil
	err := parser.parsePair2_1("Relationship", "SPDXRef-DOCUMENT DESCRIBES")
	if err == nil {
		t.Errorf("expected error for only two items in relationship, got nil")
	}
}

func TestParser2_1InvalidRelationshipTagsThreeValuesSucceed(t *testing.T) {
	parser := tvParser2_1{
		doc: &spdx.Document2_1{},
		st:  psCreationInfo2_1,
	}

	// three items but with interspersed additional whitespace
	parser.rln = nil
	err := parser.parsePair2_1("Relationship", "  SPDXRef-DOCUMENT \t   DESCRIBES  something-else    ")
	if err != nil {
		t.Errorf("expected pass for three items in relationship w/ extra whitespace, got: %v", err)
	}
}

func TestParser2_1InvalidRelationshipTagsFourValuesFail(t *testing.T) {
	parser := tvParser2_1{
		doc: &spdx.Document2_1{},
		st:  psCreationInfo2_1,
	}

	// four items
	parser.rln = nil
	err := parser.parsePair2_1("Relationship", "a DESCRIBES b c")
	if err == nil {
		t.Errorf("expected error for more than three items in relationship, got nil")
	}
}